On September 30th, Anthropic rolled out its latest programming model, Claude Sonnet 4.5, boldly asserting in a press statement that it stands as the premier programming model globally. While assertions of this nature from other firms might elicit skepticism, Anthropic's expertise in the realm of AI programming is widely acknowledged. The well - received Claude Sonnet 4, along with the groundbreaking Claude Code, which is at the forefront of programming agent development, underscores its preeminent standing in AI programming. It's fair to say that Anthropic is consistently pushing the envelope in AI programming technology.